Global Patent Index - EP 0883632 A1

EP 0883632 A1 19981216 - HIGHER MODULUS COMPOSITIONS INCORPORATING PARTICULATE RUBBER

Title (en)

HIGHER MODULUS COMPOSITIONS INCORPORATING PARTICULATE RUBBER

Title (de)

MISCHUNGEN MIT ERHÖHTEM MODUL ERHALTEN DURCH EINBRINGEN VON TEILCHENFÖRMIGEM GUMMI

Title (fr)

COMPOSITIONS A HAUT MODULE D'ELASTICITE INCORPORANT DES PARTICULES DE CAOUTCHOUC

Publication

EP 0883632 A1 19981216 (EN)

Application

EP 96944504 A 19961224

Priority

  • US 9620331 W 19961224
  • US 60952096 A 19960301

Abstract (en)

[origin: WO9731955A1] Rubber particles, to be used as fillers or extenders for various composite polymer systems, are chlorinated by a gas-solid phase reaction with a chlorine-containing gas. A composite polymer containing the chlorinated rubber fillers or extenders exhibits a higher flexural modulus than if prepared using an unchlorinated rubber filler or extender. Chlorination of the rubber particles is carried out by contacting the finely divided rubber particles with a chlorine-containing gas comprising at least about 5 volume percent chlorine. Advantageously, the chlorine can be diluted with air, nitrogen or other essentially inert gases and may contain minor amounts of fluorine. Improved performance is obtained with nitrogen dilution of the chlorine gas over air dilution. Improved polymer composite systems having higher flexural modulus result from the use of the chlorinated rubber particles as fillers instead of unchlorinated rubber particles.

IPC 1-7

C08F 8/00; C08L 9/00; C08L 23/00; C08L 33/04

IPC 8 full level

C08C 19/12 (2006.01); C08F 8/00 (2006.01); C08F 8/20 (2006.01); C08L 23/16 (2006.01); C08L 63/00 (2006.01); C08L 67/06 (2006.01); C08L 75/04 (2006.01); C08L 101/00 (2006.01); C09D 175/04 (2006.01); C09J 175/04 (2006.01)

CPC (source: EP US)

C08C 19/12 (2013.01 - EP US); C08L 23/06 (2013.01 - EP US); C08L 23/0853 (2013.01 - EP US); C08L 23/16 (2013.01 - EP US); C08L 63/00 (2013.01 - EP US); C08L 67/06 (2013.01 - EP US); C08L 75/04 (2013.01 - EP US); C08L 101/00 (2013.01 - EP US); C09D 175/04 (2013.01 - EP US); C09J 175/04 (2013.01 - EP US); C08L 2205/03 (2013.01 - EP US); C08L 2666/04 (2013.01 - EP US); C08L 2666/08 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 9731955 A1 19970904; CA 2247923 A1 19970904; EP 0883632 A1 19981216; EP 0883632 A4 20041201; US 5693714 A 19971202

DOCDB simple family (application)

US 9620331 W 19961224; CA 2247923 A 19961224; EP 96944504 A 19961224; US 60952096 A 19960301